Improvement in combination till-locks



G. H. PEACOCK. COMBINATION TILL-1100K.

iimwdw N PETERS. PHCTOUWDGRAPHER, WASHINGTDN. D. C.

,UNITED STATES PATENT -OEEICE GEORGE H. PEAOOOK, OF WEBSTER, ASSIGNOR TOGEORGE PLUME AND SUSAN A. NEWMAN, OF FAIRPORT, NEW YORK.

IMPROVEMENT IN COMBINATION TILL-LOCKS.

Specication forming part of Letters Patent No. 170,108, dated November16, 1875; application. filed May 24, 1875.

To all whom it may concern Be it known that I, GEORGE H. PEAcocK, ofWebster, in the county of Monroe and State of New York, have inventedcertain Improvements in Combination-Locks, of which the following is aspecification:

My invention relates to the construction of a lock or guard, moreespecially for tills or money-drawers, so Vdevised as to be readilyopened by the proper manipulation of the iinger-bars or tumblers, thusobviating the necessity of using a key.

Figure l is a front view of a portion of the Working parts, having theouter bank of En ger-bars, cross plate, and thumb piece removed.' Fig. 2is a front view of Working parts. Fig. 3 isa sectional side view ofworking parts. Eig. 4is a back view of the lock; Fig. 5 is an edge viewof one of the fingerbars. f

A is the back-plate. C is the bolt-carrier, which slides on theback-plate, guided by the studs F and R. Qfis the thumb-plate, having aprojecting arm, S,', Fig. 3, entering an opening in the bolt-carrier B,B, B, B, and B, Fig` l, are linger-bars, one or more of which may beraised in opening thelock. S, Fig. 27 the cross-plate in front of 'thefingerbars B,"B, "B, B, and B. B', B', B', B', and B', Fig. 2, arealsofinger-bars. In the upper side of the erossplate S, Fig. 2, is adiagonal slot, T, in which the end of the pin G of the bolt-carrier Omay be moved. pressure is applied against the outer part of thethumb-plate Q, the projecting end of the arm S' forces downthebolt-carrier C, while the pin G, moving in the diagonal slot T, movesthe cross-plate S to the right. N is a spring, which moves thebolt-carrier upward, and, consequently, moves the cross-plate S to theleft. A is a T-shaped guard, projecting Thus,` when.

from both sides of each finger-bar. The hory' the shoulder z may pass bythe T`shaped I guard, thus permitting the cross-plate S to move to theright, and hence allowing the v bolt-carrier to be moved` back. Similarsh'oulders z are provided on the inside ot' the'faceplate to act in likemanner on the T-shaped guards of the linger-bars B', B', B', B', and B'.X, Fig. 49 is fthe guard-plate, the supporting ends of which enter thebearings P P, Fig. 2, of the back-plate, thus allowing the guard-platetobe either suspended by its own gravity, or turned up s0 as to inclosethe iinge ars. I is a guard, located between the supporting ends, andprojecting at right angle to the plane ot' the guard-plate. Thus thebolt-carrier C can be forced down only when the guard-plate is turnedup, so as to allow the heel of thebolt-carrier to pass in front of theguard I, Fig. 1, ot' the guard-plate w.

I claim- 1..The combination of the bolt-carrier O, thumb-plate Q,cross-plate S, and nger-bars B B B B B and B' B' B' B' B', as hereindescribed.

2.- The guard-plate X, in combination with the bolt-carrier D, as hereindescribed..

4 GEORGE H. PEAGOGK. Witnesses:

GEORGE FRAUENBEEGEE, E. Y. GoEDoN.

